I'd recommend joining the Discord if you're looking for more info, but the tl;dr of RoA clip is that if you press Y to jumpslash on a specific frame of the confused animation that plays when you press ZR without a bow equipped, you'll do a jumpslash cancel, which can partially clip Link through collision. you then jump attack again after Link is inside the ceiling to fully clip in; make sure to spam jump so that Link doesn't crouch bc he'll get stuck if he does. this clip works on all versions as well, it's just harder on S2E since it's frame perfect and the framerate is twice as fast

EDIT: really I'd just recommend joining the Discord in general lol, there's plenty of people much more knowledgeable than me happy to help